sale 1: sold for p.energy scotsman[46 keys via mini]+19 keys

http://backpack.tf/profiles/76561198085789499?time=1429945200

http://backpack.tf/profiles/76561198085789499?time=1430031600

46+19=65

sale 2: bulk deal including a frostbite cosa[unpriced]

http://backpack.tf/profiles/76561198098565783?time=1428649200

http://backpack.tf/profiles/76561198098565783?time=1428822000

sale 3: sold with max head+other stuff for beams yellow belt

http://backpack.tf/profiles/76561198069382823?time=1431932400

http://backpack.tf/profiles/76561198069382823?time=1432105200

should be used to price the belt

sale 4: sold with white all father[1 key including paint] for blizzardy neckwear[82 keys]+s.prof ks festive huntsman

http://backpack.tf/profiles/76561198014541461?time=1433746800

http://backpack.tf/profiles/76561198014541461?time=1434006000

82*0.9=73.8

10.6*0.9=9.54

73.8+9.54=83.34 rounding to 83

mini on scotsman: sold for vivid plasma drills hat[48.5 keys]+2 keys

http://backpack.tf/profiles/76561198042107647?time=1431327600

http://backpack.tf/profiles/76561198042107647?time=1431586800

48.5*0.9=43.65 rounding to 44

44+2=46

mini on huntsman: 10.6 keys

http://gyazo.com/84f59aa0f6e88daa071f77ef5ba22730

sales at 65 and 83.

taking final price as 65-83 keys.